from the GNU version of the Collaborative International Dictionary of English
- n. a grass (Stipa spartea) with grains bearing a stout twisted awn, which, by coiling and uncoiling through changes in moisture, propels the sharp-pointed and barbellate grain into the wool and flesh of sheep. It is found from Illinois westward. See Illustration in Appendix.
Sorry, no etymologies found.
We picked our way through spinifex, the dense, bristling tussocks of porcupine grass that dominate the central Australian deserts and positively thrive on fire.